Training Blog · Injury prevention
How skiers reduce knee injury risk.
The short answer
Knee injuries are the most common serious ski injury, and the ACL is the ligament most often torn. You can't remove the risk, but you can lower it: build hamstring and hip strength, train landing and single-leg control, condition so your form holds when tired, learn how ACL injuries happen in skiing, and keep your bindings set correctly.
How ski knee injuries happen
Ski safety research out of Vermont described the two most common ways skiers tear an ACL:
- The "phantom foot." You lose balance backward, your hips drop below your knees, and the tail of the downhill ski catches. The ski acts as a lever and twists the knee. Bindings often don't release in this position.
- Boot-induced anterior drawer. You land a jump on your ski tails with straight legs. The back of the boot drives the shin forward and the ACL takes the load.
The same research found that teaching ski area staff to recognize these situations cut serious knee sprains by more than half. Awareness matters: when you're falling, keep your arms forward, hands over your skis, and don't try to sit down and fight it.
What training changes
1. Hamstrings and hips
The hamstrings resist the shin sliding forward, the same direction that loads the ACL. Strong glutes keep the knee from caving inward. Romanian deadlifts, Nordic hamstring curls, hip thrusts, and lateral band work belong in every skier's program.
2. Single-leg control
Skiing is a single-leg sport. Step-downs, split squats, and single-leg balance under fatigue teach the knee to stay lined up over the foot.
3. Landing mechanics
Soft landings with knees and hips bent, not stiff legs. We train drop landings and hops so it becomes automatic before you're in the air off a roller.
4. Eccentric strength and stance
Skiers who fall into the back seat are usually tired or weak through the quads. Eccentric leg strength keeps you centered over your skis when the run gets long.
5. Conditioning
Many injuries happen late in the day when skiers are tired. Better conditioning means your mechanics still hold on the last run.
Outside the gym
- Bindings: have a certified shop set and check them each season for your weight, height, age, boot sole length, and ability.
- Know when to stop: "one more run" when your legs are gone is a common story behind knee injuries.
- Match terrain to conditions: flat light, ice, and heavy snow raise the stakes.
- Warm up: five minutes of leg swings, squats, and lunges before the first run.
Already had an ACL injury?
Your risk of another knee injury is higher, on either leg, so the training above matters even more. Read When can I ski after ACL surgery? or see our ACL return to sport program in Reno, with Kime Performance Physical Therapy in the same building.
Quick answers
What is the most common knee injury in skiing?
MCL sprains are very common, especially for beginners. ACL tears are the most common serious knee injury, especially for intermediate and advanced skiers.
Can strength training prevent ACL tears in skiing?
It can't prevent every tear, but strength, landing, and neuromuscular training reduce risk in sport, and they help most for non-contact injuries.
Do knee braces prevent ski injuries?
Evidence for braces on healthy knees is limited. Strength, technique, and correct bindings matter more. Ask your doctor if you have a past injury.
This article is general education, not medical advice. If you have knee pain or a past injury, talk to your physician or physical therapist.
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